QR Lab for Android

QR Chat, Quiz, File transfer and the Multiplex lab in one app that works offline.

Download the app (APK)

  1. Open the downloaded file. Android asks to allow installs from your browser: allow it once.
  2. Tap Install. If Play Protect warns about an unknown app, choose Install anyway.
  3. Open QR Lab and allow the camera when asked.

To update, download and install again over the old version. iPhone: use the website instead, amro2021.github.io/qr-transfer.